Just to share my bit of knowledge as I was looking into this as well.
As far as I understand it there is some part of the meter protected by
code or password. However consumption data including consumption
profile and detailed info shuold be available without protection. I've
even read somewhere that it actually transmits some data every 30
minutes automatically.
Keywords to search for on Google include "IEC 1107" and
"FLAG port" as
it's also called. The meter I have is here
http://www.econtrols.co.uk/kwh_single.htm
Slavo
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